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Simplify each expression and find its value when y = 15.(a) 5y - 21 - 2y = (b) 24 + 12y - 9y =

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Simplify each expression and find its value when y = 15.(a) 5y - 21 - 2y = (b) 24 + 12y - 9y =
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Solution 1

(a) To simplify the expression 5y - 21 - 2y, you first combine like terms.

5y - 2y = 3y

So, the expression simplifies to 3y - 21.

Now, to find its value when y = 15, you substitute 15 for y in the simplified expression:

3(15) - 21 = 45 - 21 = 24

So, 5y - 21 - 2y = 24 when y = 15.

(b) To simpl Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.

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Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI  is a powerful AI-powered study tool designed to help you to solve study problem.
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